On 12/21/2012 12:17 AM, Mark Spencer wrote: > Visual GPS might be what you are looking for. > > http://www.visualgps.net/VisualGPSXP/default.htm Ah yes. Interestingly I have a GPS averaging app in my phone... and a whole bunch of these NMEA munching apps. :) There is even a GPS jamming detector app being developed. Cheers, Magnus